Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J05SW00015

Record: MDI41J05SW00015

General

Commodities

Primary Commodities: Copper, Silica

Secondary Commodities: Gold

Location

Township or Area: Plummer Additional

Latitude: 46° 18' 20.26"    Longitude: -83° 47' 23.63"

UTM Zone: 17    Easting: 285168.002   Northing: 5131789    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J05SW

Point Location Description: open pit

Location Method: AMIS Site Visit

Access Description: In Bruce Mines, take Cunningham Street to the north. Drive to the end of the road. On the right there is a bush road running toward a fenced area.

Exploration History

1854-1876: West Canada Mining Company - property acquisition and mining 1905-1908: H.J. Carnegie Williams - dewatering, sporadic mining. 1914-1921: Mond Nickel Company of Canada - mining for quartz for flux (shipped to Sudbury); DD. 1941: Ventures Ltd. Mining Company - property acquired,

Assessment Work on File

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  

Lithology

Lithology Comments

Jun 25, 2010 (A Wilson) - The No. 1 quartz vein has an average with of 5.5 feet and the No. 2 vein has an average width of 5 feet. These two veins are separated by diabase and both are intersected by three basic dikes 20-30 feet in width which dip at high angles. The workings at the Copper Bay location have a length of 1000 feet and three shafts were sunk, the deepest of which was 450 feet. The No. 1 quartz vein strikes N30°W and dips vertically. The No. 2 vein branches away from the No. 1 vein near the north end and parallels it to the south for about 1200 feet before merging with it again. Over most of this length, the two veins are separated by 100 ft of diabase.

Mineralization

Mineralization Comments

Jun 25, 2010 (A Pace) - The copper content of the No. 1 vein on the Wellington and Copper Bay sections are about 3.3% for an average width of 5.5 feet and for 1800 feet along the vein. In one or two cases small quantities of gold are present. The gold averages 0.3 dwt for the Wellington section of the No. 1 Vein. An unpublished report states that the average contents of the No. 1 Vein at the Copper Bay, Wellington and Taylor sections are 3.8% Cu for a width of 5.5 feet. The average contents of vein No. 2 were found to be 2.67% Cu for a width of 4.12 feet. The average silver contents of the ore were found to be 0.16 oz/t. (AR24) There are no accurate production values for any of the specific sections of the Bruce Mines. Total mine production from the Bruce Mines: 47,593 tons of concentrates having an average grade of 20% derived from an estimated 400,000 tons mined (300,000 tons milled with 60% recovery); yielding 9850 tons of copper. The copper content of the ore is estimated to have been 4.5% Cu. The majority of the production came from the Copper Bay and Wellington sections of the property. Total recorded shipments of siliceous ore shipped by Mond Nickel Company Limited was 161,683 tons (MRC 12, p. 53)

Mineral Record Details

References

Journal - Canadian Mining Journal vol. 60 (July 1939)

Publication Number: CMJ Vol 60 Page: 424-426  Date: 1939

Author: Cuthbertson, G.A.

Publisher Name:

Location:

Map - Geological compilation series, Sault Ste. Marie sheet, District of Algoma

Publication Number: P0303 Scale: 1:126,720    Date: 1997

Author: Giblin P.E., Leahy E.J.

Publisher Name: Ontario Geological Survey

Location:

Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts

Publication Number: M2419 Scale: 1:253,440    Date: 1979

Author: Giblin P.E., Leahy E.J.

Publisher Name: Ontario Geological Survey

Location:

Map - Geology, Bruce Mines-Lake George area, District of Algoma, Ontario

Publication Number: Map 1414A Scale: 1:50,000    Date: 1978

Author: Frarey, M J

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/109095

Publication - Geology of the Huronian belt between Sault Ste Marie and Blind River Ontario; Geological Survey of Canada, Memoir 383

Publication Number: GSC Memoir 383 Page: 72-73  Date: 1978

Author: Frarey, M.J.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/104548

Publication - Copper metallogeny, north shore region of Lake Huron, Ontario; Current research part A; by Geological Survey of Canada; Geological Survey of Canada, Paper no. 79-1A

Publication Number: Paper 79-1A Date: 1979

Author: Pearson, W.N.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/104860

Part - The north shore of Lake Huron, summary report on geology and mineral industry

Publication Number: ARV24-01.007 Page: 231-235  Date: 1998

Author: Knight C.W.

Publisher Name: Ontario Bureau of Mines

Location:

Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 53-54  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Report of the Royal Ontario Nickel Commission, with appendix

Publication Number: OP01 Page: 20-24  Date: 1997

Author: Holloway G.T., Miller W.G., Young M., Gibson T.W.

Publisher Name: Ontario Geological Survey

Location:

Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 75  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999

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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office